Nightcrawler is probably the weakest of the group, there, that is still enough to solo.
In scenario 1:
1. Doctor Doom
2. Iron Man (Extremis)
3. Colossus
4. Invisible Woman
5. Juggernaut
6. Spider-Man
7. The High Evolutionary
8. Mr. Sinister
9. Nightcrawler
10. MODOK
1. Doctor Doom would use his knowledge of the mystical arts to do whatever to the cube. No competition, here.
2. Ironman goes down....and easily. His technology is easily outdated by the Borg technology.
3. Colossus may be assimilated. It's difficult to say. His durability is absurd so how can the nanoprobes assimilate him? However, the Assimilation Tubules are capable of penetrating any materials or shields, according to Seven. Is Colossus capable of withstanding the tubules? I don't know. It will take some arguments for or against Assimilating Piotr.
4. She's goes down faster than a crack ho.
5. lol He solos the entirety of the collective.
6. Assimilated. One of the easiest kills.
7. Solos the entire collective but has difficulty, unlike Juggernaut.
8. Too hard to call. I want to say that he is assimilated.
9. Nightcrawler has a chance because he can port to another dimension/universe and port back. He'd have a chance to escape, that is.
10. Tough to call. I say MODOK is assimilated because his technology is behind but MODOK's partial clairvoyance may save him. I want to see arguments.